in Tucson, Phoenix,
Arizona and California

Gardening in Tucson, Phoenix, Arizona and California

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Glandularia pulchella: South American Mock Vervain / Moss Verbena

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Form: Low spreading herb.
Lifespan: Perennial.
Leaf retention: Evergreen but dies to ground and regrows from roots in regions with freezes.
Growth rate: Moderate.
Mature Size: 6-12" high and 36" wide.
Flowers: Pink, purple with a white center, or white, with five petal-like lobes; small and tubular in rounded clusters about 1" across.
Bloom: Spring into fall.
Fruit: Seed.
Leaves: Aromatic, green, three lobes finely dissected into many linear segments about 1/4" long, having a moss like appearance.
Stems: No thorns, sprawling. Stem nodes that touch moist soil sprout roots.
Wildlife: Attracts butterflies.
Toxic / Danger: No.
Origin: South America.

Cultivation and Uses
USDA hardiness zones: 9b-11. Root hardy in zones 7-9a.
Heat tolerant: Yes, but may go dormant above 85°F in full sun.
Drought tolerant: Yes.
Sun: Part shade in regions where temperatures go above 85°F.
Water after becoming established: Monthly, except weekly in a mostly sunny location when temperatures are above 85°F.
Soil: Very well drained, dry, low to moderate organic content, pH 6.1-7.8 (slightly acidic to slightly alkaline). Develops root rot in wet soil.
Mulch: Use decomposing granite for best results.
Planting: In regions with hot summers, it is best planted in the fall so it will become well established before summer heat.
Prune: Mow in mid winter or rake up dead stems.
Litter: Dies to ground in freezes.
Propagation: Seed, rootball division, cuttings. Self-seeds freely.
Uses: Ornamental, ground cover, erosion control on moist ground.

Former botanical names: Verbena pulchella, Verbena tenuisecta. Another common name is Rock Verbena. Considered invasive in Texas. This plant does not withstand foot traffic.

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Glandularia pulchella: Moss Verbena